/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 18:45:44,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 18:45:44,613 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-04 18:45:44,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 18:45:44,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 18:45:44,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 18:45:44,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 18:45:44,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 18:45:44,647 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 18:45:44,647 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 18:45:44,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 18:45:44,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 18:45:44,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 18:45:44,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 18:45:44,652 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 18:45:44,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 18:45:44,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 18:45:44,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 18:45:44,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 18:45:44,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 18:45:44,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 18:45:44,653 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 18:45:44,653 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 18:45:44,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 18:45:44,653 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 18:45:44,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 18:45:44,654 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 18:45:44,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 18:45:44,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 18:45:44,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 18:45:44,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 18:45:44,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 18:45:44,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 18:45:44,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 18:45:44,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 18:45:44,655 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 18:45:44,655 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 18:45:44,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 18:45:44,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 18:45:44,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 18:45:44,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 18:45:44,658 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-04 18:45:44,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 18:45:44,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 18:45:44,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 18:45:44,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 18:45:44,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 18:45:44,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-04 18:45:46,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 18:45:46,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 18:45:46,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-04 18:45:46,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f589f931/2ab508dd18124378843cc9335a55dc87/FLAGf7be2b8f2 [2024-11-04 18:45:46,800 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f589f931/2ab508dd18124378843cc9335a55dc87 [2024-11-04 18:45:46,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 18:45:46,803 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 18:45:46,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 18:45:46,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 18:45:46,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 18:45:46,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:45:46" (1/1) ... [2024-11-04 18:45:46,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597f8da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:46, skipping insertion in model container [2024-11-04 18:45:46,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:45:46" (1/1) ... [2024-11-04 18:45:46,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 18:45:47,494 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,552 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,555 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,568 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,573 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,580 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,583 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,587 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,602 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,620 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,625 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,628 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,632 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,639 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,644 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,650 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,657 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,658 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,658 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,659 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,660 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,660 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,661 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,661 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,661 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,661 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,662 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,662 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,662 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,662 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,663 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,663 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,663 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,677 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2024-11-04 18:45:47,740 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 18:45:47,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 18:45:47,764 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 18:45:47,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3226-3227] [2024-11-04 18:45:47,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3238-3239] [2024-11-04 18:45:47,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3242-3243] [2024-11-04 18:45:47,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3246-3247] [2024-11-04 18:45:47,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3250-3251] [2024-11-04 18:45:47,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp): "ebx"); [3767] [2024-11-04 18:45:47,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___0): "ebx"); [3772] [2024-11-04 18:45:47,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___1): "ebx"); [3777] [2024-11-04 18:45:47,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___2): "ebx"); [3782] [2024-11-04 18:45:47,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___3): "ebx"); [3787] [2024-11-04 18:45:47,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (tmp), "i" (1UL)); [3886-3887] [2024-11-04 18:45:47,886 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2024-11-04 18:45:47,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 18:45:47,957 INFO L204 MainTranslator]: Completed translation [2024-11-04 18:45:47,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47 WrapperNode [2024-11-04 18:45:47,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 18:45:47,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 18:45:47,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 18:45:47,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 18:45:47,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,081 INFO L138 Inliner]: procedures = 196, calls = 552, calls flagged for inlining = 74, calls inlined = 69, statements flattened = 1619 [2024-11-04 18:45:48,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 18:45:48,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 18:45:48,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 18:45:48,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 18:45:48,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,116 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,254 INFO L175 MemorySlicer]: Split 205 memory accesses to 7 slices as follows [2, 13, 4, 14, 122, 27, 23]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 0, 2, 0, 0]. The 128 writes are split as follows [0, 2, 2, 12, 62, 27, 23]. [2024-11-04 18:45:48,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,385 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 18:45:48,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 18:45:48,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 18:45:48,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 18:45:48,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (1/1) ... [2024-11-04 18:45:48,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 18:45:48,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 18:45:48,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-04 18:45:48,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-04 18:45:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2024-11-04 18:45:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2024-11-04 18:45:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-04 18:45:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-04 18:45:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-04 18:45:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-04 18:45:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-04 18:45:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-04 18:45:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-04 18:45:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-04 18:45:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-04 18:45:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-04 18:45:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-04 18:45:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-04 18:45:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-04 18:45:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-04 18:45:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-04 18:45:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-04 18:45:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-04 18:45:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2024-11-04 18:45:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2024-11-04 18:45:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-04 18:45:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-04 18:45:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-04 18:45:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-04 18:45:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-04 18:45:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-04 18:45:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-04 18:45:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-04 18:45:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-04 18:45:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-04 18:45:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-04 18:45:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-04 18:45:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-04 18:45:48,486 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-04 18:45:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-04 18:45:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-04 18:45:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-04 18:45:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-04 18:45:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-04 18:45:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-04 18:45:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-04 18:45:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-04 18:45:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-04 18:45:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-04 18:45:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-04 18:45:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-04 18:45:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-04 18:45:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-04 18:45:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-04 18:45:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-04 18:45:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-04 18:45:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-04 18:45:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-04 18:45:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-04 18:45:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-04 18:45:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-04 18:45:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2024-11-04 18:45:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2024-11-04 18:45:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 18:45:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 18:45:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-04 18:45:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-04 18:45:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-04 18:45:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-04 18:45:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-04 18:45:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-04 18:45:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-04 18:45:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-04 18:45:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-04 18:45:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2024-11-04 18:45:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2024-11-04 18:45:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-04 18:45:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-04 18:45:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2024-11-04 18:45:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2024-11-04 18:45:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2024-11-04 18:45:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2024-11-04 18:45:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-04 18:45:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-04 18:45:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-04 18:45:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-04 18:45:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2024-11-04 18:45:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2024-11-04 18:45:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-04 18:45:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-04 18:45:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-04 18:45:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-04 18:45:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-04 18:45:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-04 18:45:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-04 18:45:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-04 18:45:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-04 18:45:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-04 18:45:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-04 18:45:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-04 18:45:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-04 18:45:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-04 18:45:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2024-11-04 18:45:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2024-11-04 18:45:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-04 18:45:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-04 18:45:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2024-11-04 18:45:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2024-11-04 18:45:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2024-11-04 18:45:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-04 18:45:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-04 18:45:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-04 18:45:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2024-11-04 18:45:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-04 18:45:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-04 18:45:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-04 18:45:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-04 18:45:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-04 18:45:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-04 18:45:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-04 18:45:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-04 18:45:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2024-11-04 18:45:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2024-11-04 18:45:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-04 18:45:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-04 18:45:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2024-11-04 18:45:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2024-11-04 18:45:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2024-11-04 18:45:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2024-11-04 18:45:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2024-11-04 18:45:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2024-11-04 18:45:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-04 18:45:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-04 18:45:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-04 18:45:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-04 18:45:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 18:45:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 18:45:48,881 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 18:45:48,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 18:45:48,966 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-04 18:46:06,459 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2024-11-04 18:46:06,459 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 18:46:06,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 18:46:06,483 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-04 18:46:06,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:46:06 BoogieIcfgContainer [2024-11-04 18:46:06,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 18:46:06,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 18:46:06,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 18:46:06,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 18:46:06,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 06:45:46" (1/3) ... [2024-11-04 18:46:06,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7409aab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:46:06, skipping insertion in model container [2024-11-04 18:46:06,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:45:47" (2/3) ... [2024-11-04 18:46:06,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7409aab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:46:06, skipping insertion in model container [2024-11-04 18:46:06,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:46:06" (3/3) ... [2024-11-04 18:46:06,489 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-04 18:46:06,501 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 18:46:06,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 18:46:06,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 18:46:06,582 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17c5667b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 18:46:06,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 18:46:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 534 states, 378 states have (on average 1.3148148148148149) internal successors, (497), 395 states have internal predecessors, (497), 115 states have call successors, (115), 40 states have call predecessors, (115), 39 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-04 18:46:06,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-04 18:46:06,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 18:46:06,606 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 18:46:06,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 18:46:06,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 18:46:06,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1477246676, now seen corresponding path program 1 times [2024-11-04 18:46:06,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 18:46:06,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682999087] [2024-11-04 18:46:06,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 18:46:06,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 18:46:06,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 18:46:06,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 18:46:06,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-04 18:46:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 18:46:07,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-04 18:46:07,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 18:46:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-04 18:46:07,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 18:46:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-04 18:46:13,222 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 18:46:13,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682999087] [2024-11-04 18:46:13,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1682999087] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 18:46:13,223 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 18:46:13,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-04 18:46:13,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980974330] [2024-11-04 18:46:13,230 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 18:46:13,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-04 18:46:13,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 18:46:13,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-04 18:46:13,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 18:46:13,287 INFO L87 Difference]: Start difference. First operand has 534 states, 378 states have (on average 1.3148148148148149) internal successors, (497), 395 states have internal predecessors, (497), 115 states have call successors, (115), 40 states have call predecessors, (115), 39 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-04 18:46:13,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 18:46:13,366 INFO L93 Difference]: Finished difference Result 1063 states and 1474 transitions. [2024-11-04 18:46:13,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-04 18:46:13,368 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 168 [2024-11-04 18:46:13,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 18:46:13,380 INFO L225 Difference]: With dead ends: 1063 [2024-11-04 18:46:13,380 INFO L226 Difference]: Without dead ends: 523 [2024-11-04 18:46:13,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 18:46:13,391 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-04 18:46:13,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 18:46:13,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-04 18:46:13,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-04 18:46:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 373 states have (on average 1.3002680965147453) internal successors, (485), 384 states have internal predecessors, (485), 111 states have call successors, (111), 39 states have call predecessors, (111), 38 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-04 18:46:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 699 transitions. [2024-11-04 18:46:13,468 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 699 transitions. Word has length 168 [2024-11-04 18:46:13,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 18:46:13,468 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 699 transitions. [2024-11-04 18:46:13,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-04 18:46:13,469 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 699 transitions. [2024-11-04 18:46:13,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-04 18:46:13,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 18:46:13,472 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 18:46:13,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-04 18:46:13,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 18:46:13,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 18:46:13,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 18:46:13,674 INFO L85 PathProgramCache]: Analyzing trace with hash 404943672, now seen corresponding path program 1 times [2024-11-04 18:46:13,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 18:46:13,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8398118] [2024-11-04 18:46:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 18:46:13,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 18:46:13,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 18:46:13,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 18:46:13,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-04 18:46:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 18:46:14,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 18:46:14,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 18:46:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:46:26,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 18:46:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:46:34,374 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 18:46:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8398118] [2024-11-04 18:46:34,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [8398118] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 18:46:34,374 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 18:46:34,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-04 18:46:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516954884] [2024-11-04 18:46:34,375 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 18:46:34,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 18:46:34,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 18:46:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 18:46:34,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:46:34,377 INFO L87 Difference]: Start difference. First operand 523 states and 699 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-04 18:46:34,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 18:46:34,469 INFO L93 Difference]: Finished difference Result 525 states and 700 transitions. [2024-11-04 18:46:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 18:46:34,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 168 [2024-11-04 18:46:34,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 18:46:34,474 INFO L225 Difference]: With dead ends: 525 [2024-11-04 18:46:34,474 INFO L226 Difference]: Without dead ends: 522 [2024-11-04 18:46:34,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:46:34,475 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 625 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-04 18:46:34,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 696 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 18:46:34,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-04 18:46:34,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2024-11-04 18:46:34,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 373 states have (on average 1.2975871313672922) internal successors, (484), 383 states have internal predecessors, (484), 110 states have call successors, (110), 39 states have call predecessors, (110), 38 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-04 18:46:34,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 697 transitions. [2024-11-04 18:46:34,504 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 697 transitions. Word has length 168 [2024-11-04 18:46:34,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 18:46:34,506 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 697 transitions. [2024-11-04 18:46:34,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-04 18:46:34,506 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 697 transitions. [2024-11-04 18:46:34,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-04 18:46:34,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 18:46:34,509 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 18:46:34,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-04 18:46:34,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 18:46:34,710 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 18:46:34,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 18:46:34,710 INFO L85 PathProgramCache]: Analyzing trace with hash -331755225, now seen corresponding path program 1 times [2024-11-04 18:46:34,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 18:46:34,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662020025] [2024-11-04 18:46:34,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 18:46:34,711 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 18:46:34,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 18:46:34,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 18:46:34,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-04 18:46:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 18:46:35,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 18:46:35,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 18:46:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:46:48,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 18:46:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:46:57,049 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 18:46:57,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662020025] [2024-11-04 18:46:57,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1662020025] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 18:46:57,050 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 18:46:57,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-04 18:46:57,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918879554] [2024-11-04 18:46:57,050 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 18:46:57,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 18:46:57,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 18:46:57,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 18:46:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:46:57,051 INFO L87 Difference]: Start difference. First operand 522 states and 697 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-04 18:46:57,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 18:46:57,106 INFO L93 Difference]: Finished difference Result 524 states and 698 transitions. [2024-11-04 18:46:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 18:46:57,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 169 [2024-11-04 18:46:57,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 18:46:57,111 INFO L225 Difference]: With dead ends: 524 [2024-11-04 18:46:57,111 INFO L226 Difference]: Without dead ends: 521 [2024-11-04 18:46:57,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:46:57,112 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 622 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-04 18:46:57,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 694 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 18:46:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-04 18:46:57,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-04 18:46:57,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 373 states have (on average 1.2949061662198391) internal successors, (483), 382 states have internal predecessors, (483), 109 states have call successors, (109), 39 states have call predecessors, (109), 38 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-04 18:46:57,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 695 transitions. [2024-11-04 18:46:57,143 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 695 transitions. Word has length 169 [2024-11-04 18:46:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 18:46:57,145 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 695 transitions. [2024-11-04 18:46:57,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-04 18:46:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 695 transitions. [2024-11-04 18:46:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-04 18:46:57,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 18:46:57,149 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 18:46:57,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-04 18:46:57,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 18:46:57,349 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 18:46:57,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 18:46:57,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1694579685, now seen corresponding path program 1 times [2024-11-04 18:46:57,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 18:46:57,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661446314] [2024-11-04 18:46:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 18:46:57,350 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 18:46:57,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 18:46:57,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 18:46:57,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-04 18:46:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 18:46:58,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 18:46:58,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 18:47:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:47:10,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 18:47:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:47:18,468 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 18:47:18,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661446314] [2024-11-04 18:47:18,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1661446314] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 18:47:18,468 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 18:47:18,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-04 18:47:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143908428] [2024-11-04 18:47:18,468 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 18:47:18,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 18:47:18,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 18:47:18,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 18:47:18,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:47:18,470 INFO L87 Difference]: Start difference. First operand 521 states and 695 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-04 18:47:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 18:47:18,527 INFO L93 Difference]: Finished difference Result 523 states and 696 transitions. [2024-11-04 18:47:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 18:47:18,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 170 [2024-11-04 18:47:18,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 18:47:18,534 INFO L225 Difference]: With dead ends: 523 [2024-11-04 18:47:18,534 INFO L226 Difference]: Without dead ends: 520 [2024-11-04 18:47:18,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:47:18,538 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 619 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-04 18:47:18,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 692 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 18:47:18,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-04 18:47:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-04 18:47:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 373 states have (on average 1.292225201072386) internal successors, (482), 381 states have internal predecessors, (482), 108 states have call successors, (108), 39 states have call predecessors, (108), 38 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-04 18:47:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 693 transitions. [2024-11-04 18:47:18,574 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 693 transitions. Word has length 170 [2024-11-04 18:47:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 18:47:18,574 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 693 transitions. [2024-11-04 18:47:18,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-04 18:47:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 693 transitions. [2024-11-04 18:47:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-04 18:47:18,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 18:47:18,578 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 18:47:18,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-04 18:47:18,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 18:47:18,778 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 18:47:18,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 18:47:18,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1709155043, now seen corresponding path program 1 times [2024-11-04 18:47:18,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 18:47:18,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831476603] [2024-11-04 18:47:18,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 18:47:18,779 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 18:47:18,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 18:47:18,781 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 18:47:18,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-04 18:47:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 18:47:20,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 18:47:20,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 18:47:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:47:20,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 18:47:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-04 18:47:26,147 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 18:47:26,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831476603] [2024-11-04 18:47:26,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1831476603] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 18:47:26,147 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 18:47:26,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-04 18:47:26,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896285027] [2024-11-04 18:47:26,148 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 18:47:26,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 18:47:26,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 18:47:26,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 18:47:26,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:47:26,149 INFO L87 Difference]: Start difference. First operand 520 states and 693 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-04 18:47:27,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 18:47:27,527 INFO L93 Difference]: Finished difference Result 1255 states and 1643 transitions. [2024-11-04 18:47:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 18:47:27,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2024-11-04 18:47:27,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 18:47:27,539 INFO L225 Difference]: With dead ends: 1255 [2024-11-04 18:47:27,540 INFO L226 Difference]: Without dead ends: 771 [2024-11-04 18:47:27,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 18:47:27,546 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 394 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-04 18:47:27,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1266 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-04 18:47:27,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-04 18:47:27,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 753. [2024-11-04 18:47:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 542 states have (on average 1.2785977859778597) internal successors, (693), 555 states have internal predecessors, (693), 145 states have call successors, (145), 67 states have call predecessors, (145), 65 states have return successors, (144), 136 states have call predecessors, (144), 140 states have call successors, (144) [2024-11-04 18:47:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 982 transitions. [2024-11-04 18:47:27,603 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 982 transitions. Word has length 174 [2024-11-04 18:47:27,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 18:47:27,603 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 982 transitions. [2024-11-04 18:47:27,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-04 18:47:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 982 transitions. [2024-11-04 18:47:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-04 18:47:27,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 18:47:27,605 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 18:47:27,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-04 18:47:27,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 18:47:27,810 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 18:47:27,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 18:47:27,810 INFO L85 PathProgramCache]: Analyzing trace with hash -992460118, now seen corresponding path program 1 times [2024-11-04 18:47:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 18:47:27,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291463295] [2024-11-04 18:47:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 18:47:27,811 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 18:47:27,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 18:47:27,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 18:47:27,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-04 18:47:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 18:47:29,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 18:47:29,059 INFO L278 TraceCheckSpWp]: Computing forward predicates...